package jdbc;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;

public class JDBCDemo10 {
    public static void main(String[] args) {
        try(Connection connection = DBUtil.getConnection();) {
            connection.setAutoCommit(false);
            String sql = "DELETE FROM user WHERE id=?";
            PreparedStatement ps = connection.prepareStatement(sql);
            ps.setInt(1,2);
            int num = ps.executeUpdate();
            System.out.println(num>0?"删除成功":"删除失败");
            connection.rollback();
            //connection.commit();
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
}
